@article{9f87218a5ace4a3fba5faf499494d509,
title = "In situ X-ray studies of adlayer-induced crystal nucleation at the liquid-liquid interface",
abstract = "Crystal nucleation and growth at a liquid-liquid interface is studied on the atomic scale by in situ {\AA}-resolution X-ray scattering methods for the case of liquid Hg and an electrochemical dilute electrolyte containing Pb 2+, F-, and Br- ions. In the regime negative of the Pb amalgamation potential Φrp =-0:70 V, no change is observed from the surface-layered structure of pure Hg. Upon potential-induced release of Pb2+ from the Hg bulk at Φ>Φrp, the formation of an intriguing interface structure is observed, comprising a well-defined 7.6-{\AA}-thick adlayer, decorated with structurally related 3D crystallites. Both are identified by their diffraction peaks as PbFBr, preferentially aligned with their c→ axis along the interface normal. X-ray reflectivity shows the adlayer to consist of a stack of five ionic layers, forming a single-unit-cell-thick crystalline PbFBr precursor film, which acts as a template for the subsequent quasiepitaxial 3D crystal growth. This growth behavior is assigned to the combined action of electrostatic and short-range chemical interactions.",
keywords = "Electrochemistry, Liquid metal",
author = "Annika Elsen and Sven Festersen and Benjamin Runge and Koops, {Christian T.} and Ocko, {Benjamin M.} and Moshe Deutsch and Seeck, {Oliver H.} and Murphy, {Bridget M.} and Magnussen, {Olaf M.}",
year = "2013",
month = apr,
day = "23",
doi = "10.1073/pnas.1301800110",
language = "אנגלית",
volume = "110",
pages = "6663--6668",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "National Academy of Sciences",
number = "17",
}